Involves constant throwing up and feeling extreme nausea and dizzyness for the rest of the night, possibly with continued vomiting later on. In more extreme cases, the person in question may experience hallucinations.

Occurs when someone smokes a lot of marijuana in a short period of time. Common amongst those who want to prove their masculinity somehow by smoking large amounts, usually through peer pressure.

Usually ruins the night for everyone else, as it means they must look after them and take them home. So people who green out often aren't very popular with the rest of the dope heads.